Australian Owlet-nightjar vs Karimui Owlet-nightjar
Aegotheles cristatus 对比 Aegotheles terborghi
Side-by-Side Comparison
| 属性 | Australian Owlet-nightjar | Karimui Owlet-nightjar |
|---|---|---|
| 学名 | Aegotheles cristatus | Aegotheles terborghi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Aegothelidae | Aegothelidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | 27.2 cm (10.7 in) | — |
| 体重 | 48.0 g (1.69 oz) | 60.0 g (2.12 oz) |
| 食性 | Crepuscular to nocturnal; feeds on large beetles, moths, and flying insects by aerial sallies and … | Night-active insect hunter taking beetles, moths, and termites in brief aerial pursuits and occasional ground … |
| 产卵数 | 2-5 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Australian Owlet-nightjar
Loud, churring 'churr-churr' and yapping 'quee-quee'; distinctive churring trill; calls at night from tree hollows in Australian woodland; alarm a sharp yapping series
Karimui Owlet-nightjar
Virtually undocumented vocalizations; known only from Papua New Guinea highlands; presumed churring call typical of genus; essentially no recordings exist
Geographic Range & Migration
Australian Owlet-nightjar
Found throughout Australia including Tasmania. Resident in woodland, mallee scrub, and suburban areas. Australia's most widespread owlet-nightjar.
Karimui Owlet-nightjar
Endemic to the Karimui Basin of Papua New Guinea at 1,000–2,000 m. One of the rarest birds in New Guinea; known from very few specimens.
保护状况
Australian Owlet-nightjar
Karimui Owlet-nightjar
How to Tell Them Apart
Australian Owlet-nightjar
Grey-brown upperparts with dark brown barring; underparts pale buff finely barred dark; facial disc with bold dark bars; small crest feathers; two morphs—grey and rufous-brown; commonly seen perching upright in …
Karimui Owlet-nightjar
Brown upperparts with dark barring and pale buff edging; underparts pale buff barred brown; facial disc marked with dark lines; recently described New Guinea species; plumage details incompletely documented from …
About These Birds
Australian Owlet-nightjar
一种小型裸鼻鸱（体长21-25厘米），是其科中分布最广、最常见的成员。分布于澳大利亚至新几内亚的多种栖息地。属裸鼻鸱科（Aegothelidae），夜行性，常栖于树洞中，以昆虫为食。
Karimui Owlet-nightjar
一种中型裸鼻鸱，仅分布于巴布亚新几内亚卡里穆伊盆地地区。属裸鼻鸱科（Aegothelidae），从近期采集标本中描述，是科学上较新发现的物种，分布极为局限。